Online Resources:
— HTML —
http://positioniseverything.net
http://www.adobe.com/designcenter/video_workshop/
http://www.adobe.com/cfusion/exchange/
http://www.adobe.com/designcenter/
http://www.javascriptkit.com
http://labs.adobe.com/
http://www.adobe.com/cfusion/webforums/forum/index.cfm?forumid=12
— HTML EMAILS —
http://www.ianhoar.com/category/email/
http://www.campaignmonitor.com/gallery/
http://www.campaignmonitor.com/blog/post/2468/why-we-need-web-standards-supp-1/
http://www.emaillabs.com/best_practices/
http://dennisdeacon.wordpress.com/2008/06/09/top-10-email-best-practices/
http://mikekleiman.blogspot.com/search/label/Coding
http://www.designlabelblog.com/2009/01/html-email-best-practices-resources-and.html
http://www.adobe.com/devnet/dreamweaver/articles/html_emails.html
http://www.iab.net/iab_products_and_industry_services/508676/508767/Ad_Unit
— FLASH —
http://www.flashkit.com
http://www.webwasp.co.uk
http://www.forum4designers.com
http://www.freeflashtutorials.com
http://www.actionscript.org
http://www.ultrashock.com
http://www.lynda.com
http://www.kirupa.com
http://www.tizag.com
http://www.flashden.net
http://www.flashforwardconference.com
http://www.gofordesign.com
http://livedocs.adobe.com/flex/201/langref/migration.html
http://www.adobe.com/devnet/flash/